import pandas as pd
list = [[110,120,105],[95,110,108],[98,80,100],[112,106,97]]
index = ['王濛','李珊','赵胜','刘文']
columns = ['语文','数学','英语']
df = pd.DataFrame(list,index,columns)
print('原始数据: \n', df)
print('选取所有学生的语文成绩： \n',df['语文'])
print()